Method and device for producing a tomosynthetic 3D x-ray image

a tomosynthetic and 3d x-ray technology, applied in tomography, instruments, applications, etc., can solve the problem of severely attenuated individual dose emitted by such emitters, and achieve the effect of increasing the dos
US20100034450A1Inactive Publication Date: 2010-02-11SIEMENS AG
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SIEMENS AG
Publication Date
2010-02-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

In a method and device for producing a tomosynthetic 3D x-ray image, a number of 2D projection images of an examination subject are acquired using a fixed x-ray source. The x-ray source has multiple, individually controllable emitters that respectively emit a single x-ray dose from various different directions. The tomosynthetic 3D image is reconstructed from the individual 2D projection images, and at least one 2D projection image is composed of multiple individual images.
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Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The invention concerns a method that is in particular suitable for mammography, as well as a device to generate a tomosynthetic 3D x-ray image. In such a tomosynthetic method, a number of x-ray images of an examination subject are acquired from different directions. The tomosynthetic 3D x-ray image is subsequently calculated from the 2D projection images obtained in this way.

[0003] 2. Description of the Prior Art

[0004] A tomosynthetic 3D x-ray image is an image data set that is composed of slice images. Such an image data set acquired via reconstruction of 2D projection images is designated in the following as a tomosynthetic 3D x-ray image or 3D tomosynthesis image.

[0005] Mammography concerns an x-ray examination of the breast with the goal of detecting malignant tumors at an optimally early stage. Through continuous improvement of imaging methods it is sought to generate x-ray images with greater significance in order to...

Claims

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